VMS (Variable Message Sign)
Installed in tunnels and open motorways, Variable Message Signs inform and warn drivers with text messages according to current traffic conditions, incidents and urgent traffic regulations.
A Variable Message Sign (VMS) is a LED technology display product for dynamically changing messages, regarding motorway and tunnel traffic information.
It is autonomous and designed for instant and secure data transfer and display. It is the driver’s information source about emergencies, accidents, traffic incidents. It displays information sent by the traffic control and monitoring center either automatically or manually.
It is possible to directly link the sign with a PLC as well as to control and monitor it from a central computer. Moreover, it can be integrated with a SCADA system or control the sign locally from a laptop computer. In this way it is possible to control it from central or local software. Alternatively smaller scale integrations can be easily performed via the relay inputs. The total control of the sign including communications diagnostics display etc., is accomplished using a purpose-built industrial grade controller inside the sign.